However, it is not clear whether the sect was named after its founder or the founder assumed the name for its meaning after founding the sect.

When it comes to Boris, it is believed that while the name is not Slavic, it gained popularity in the Slavic world in conjunction with the christianization of Kievan Rus, and more importantly, the canonization of St. Boris and Gleb, two of the earliest Russian saints (canonized 1071). [It is known that one of their father's wives was Bulgarian, and it is believed that Boris was her son, though Gleb maybe wasn't].